Structuring computer-mediated communication systems to avoid information overload
Communications of the ACM
An incremental access method for ViewCache: concept, algorithms, and cost analysis
ACM Transactions on Database Systems (TODS)
The POSTGRES next generation database management system
Communications of the ACM
Communications of the ACM
A Declarative Approach to Active Databases
Proceedings of the Eighth International Conference on Data Engineering
Ode as an Active Database: Constraints and Triggers
VLDB '91 Proceedings of the 17th International Conference on Very Large Data Bases
Extensible Buffer Management of Indexes
VLDB '92 Proceedings of the 18th International Conference on Very Large Data Bases
A toolkit for multimodal interface design: an empirical investigation
HCI'07 Proceedings of the 12th international conference on Human-computer interaction: intelligent multimodal interaction environments
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World Wide Web (WWW) is being wide-spread used. People at different place can read the hypermedia information through the computer network. Therefore, many educators tried to develop a distance learning system on WWW so that people in different places can learn at any time. However, some learning activities, such as discussion, collaboration, and conference, are difficult to implement on WWW for teachers who are not computer science major. In this paper, we proposed a methodology by which teachers can build their collaborative learning activities on WWW effortlessly. The specification language, called Learning Activities Description (LAD), is devised for teachers to specify their learning activities and styles. Our system can generate the required programs according to the LAD specification. Therefore, designing learning activities by using LAD can be as easy as designing courseware by using HTML.